Water-heater.



G. ZUBER.

WATER HEATER.

APPLICATION FILED JUNE 17, 1912.

1 98,544, Patented June 2, I914.

UNITED STATES OFFICE GOTTLIEB Z'UBER, OF ST. LOUIS, MISSOURI, ASSIGNOROF ONE-HALF TO HERMAN G. ZUBER, O1? MURPHYSBORO, ILLINOIS.

WATER-HEATER.

Specification of Letters Patent.

Patented June 2, 1914.

To all whom it may concern:

lie it known that I, Gor'rnrnn Zunuu, a citizen of the United States,and resident of St. Louis, lliilissouri, have invented certain new anduseful Improvements in VVater' Heaters, of which the following is aspecification containing a full, clear, and exact description, referencebeing had to the ac com 'ianying drawings, forming a part hereof.

My invention relates to improvements in water heaters, and particularlyrelates to that class of water heaters which is to be submerged and hasa combustion chamber beneath the surface of the body of water to beheated.

The object of my invention is to construct a water heater provided witha combustion chamber arranged to be submerged beneath the surface of thebody of water to be heated, and to provide means for connecting saidsubmerged combustion chamber with a. source of heating medium.

With the above purposes in view my invention consists in certain novelfeatures oil construction and arrangement of parts as will behereinafter more fully described, pointed out in the claim andillustrated by the accompanying drawings, in which Figure l is avertical sectional elevation of a water heater constructed according tomy invention; and Fig. 2 is a sectional plan of the water heater takenon the line 2-2 of Fig. 1, the burner being removed.

deferring by numerals to the accompanying drawings: 3 designates theouter cylind rical. body portion and -lthe bottom of the outercylindrical portion. Vithin the cylindcr 3 and beneath the bottom athere is a ring 5. This ring has considerable body and its sole functionis to provide a weight to overcome the buoyancy oi the water heater.Projecting downwardly from the bottom 41: are thefeet P, the extremitiesof which are cushioned at '7 in order that, when the heater is placed torest upon the bottom oil? a vessel holding a body of Water to be heated,the surface of the bottom of the vesscl will not be marred.

It is to be particularly noted that the feet 6 project below the bottomof the ring 5 and the lower end of the cylinder 3 s required to permit awater circulation from the body of water heated beneath the bottom 4L ofthe cyiinder d designates the inner cylinder having a bottom 9, thebottom 9 being spaced a considerable distance apart from the bottom -11-ot the outer cylinder in order to provide a combustion chamber 10. Thewall of the cylinder 8 and the wall of the cylinder 3 are spaced aconsiderable distance apart in order to permit the escape ot theproducts of combustion from the chamber 10.

At intervals throughout the circumfen once oi the heater, I havearranged the 1101i zontal water circulating tubes 11 which are supportedby the walls of the inner cylinder 8 and outer cylinder 3.

Supported by the bottoms Q and 41- is a number of vertical watercirculating tubes 12. The tubes 12 have water-tight conncc tions withthe bottoms 9 and l; and permit of a circulation of water from the bodyof water to be heated into the inner cylinder 8, and the horizontal.tubes permit a circulation of water from the interior of the cylinder 8to the body of water being heated.

The wall. of the inner cylinder projects slightly above the wall oi theouter cylinder. Supported on top of the wall oi the inner cylinder is acover 13 having at its margin an annular extension beyond the wall oithe inner cylinder forn'iing a deflector 14. which overlies the top ofthe wall of the outer eyl- 8, indcr to cause the products of combustionrising between the walls oi the inner and outer cylinder to dischargedownwardly against the surface of the body of water to be heated. 90

15 designates an open-euded tube which is secured at its bottom end tothe bottom 9 of the inner cylinder, the bottom end of the tube openinginto the combustion chamber 10. 95

The tube 15 projects a slight distance above the cover 13 and, in orderto provide for the fitting of the cover upon the top of the innercylinder, there is an opening 16 formed in the cover through which thetube 15 projects.

17 designates an open-topped air mixer provided with radially extendedlugs 18 which rest upon the upper end oi? the tube 15 forming a supportfor the mixer.

Secured to the mixer is a gas valve 19 provided with a means whereby aflexible tube 20 may be secured thereto. Secured to the mixer is a tube21 to the lower end of Which is secured the burner 22, the lower end ofthe burner being projected slightly into the combustion chamber 10.

Supported within the body of the burner is a threaded sleeve 23 intowhich is secured a threaded rod 2& carrying at its lower end adisk 25,the margin of which is beveled, the bevel inclining downwardly andoutwardly so that the heat from the burner will be deflected todischarge against the vertical water circulating tubes 12.

26 designates tubes which are supported by the bottom 9 of the innercylinder. These tubes project at their lower ends to pointsapproximately in the plane of the body por tion of the bottom a, theupper ends'of the tubes extending to points above the water level.

27 designates short tubes which are carried by the cover 18 and arearranged to be inserted in the tops of the tubes 26.

The bottom a of the outer cylinder is provided with depressions 28surrounding the lowermost ends of the tubes 26. The tubes 26 and shorttubes 27 provide a means for admitting air to the combustion chamber.

In the practical operation of the heater, aquantity of water is placedin a Vessel and the heater is placed in the body of water. The burner isthen placed in the tube 15 and the gas issuing from the valve 19 isignited, the flame therefrom discharging from the open-ended bottom ofthe burner is deflected by the disk 25. This deflection of the flame andheat from the burner causes the heat to be discharged directly againstthe tubes 12, and from thence the heat travels between the bottoms 4Cand 9 and between the Vertical walls of the cylinders 3 and 8. i

It is to be observed that the heat is conducted over a considerable areaof heating J the body of water outside of the heater. In i this mannerthe heat is utilized to obtain the greatest heating efficiency.

I claim:

A portable, submerged water heater, comprising inner and outer bodieswhich are spaced apart at their bottoms and sides, means for supportingthe outer body in a plane above a supporting surface, open-end ed watertubes connecting the bottoms of the inner and outer bodies, open-ended,water tubes connecting the sides of the inner and outer bodies, anopen-ended tube extended from the bottom of the inner body upwardlythrough the heater, a burner ar ranged to be located in said lastmentioned tube to discharge into the space between the bottoms of theinner and outer bodies, airsupplying tubes secured to the bottom of theinner body and projecting above and below said bottom, a cover supportedby the walls of the inner body,.and open-ended tubes carired by saidcover arranged to telescopically connect with said air-supplying tubes.

In testimony whereof, I have signed my name to this specification, inpresence of two subscribing witnesses.

GOTTLIEB ZUBER.

lVitnesses E. L. WVALLACE, N. G. BUTLER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

